Blue-gray Gnatcatcher

Gobemoucheron gris-bleu · Polioptila caerulea · Family Polioptilidae
Density map of Blue-gray Gnatcatcher
Density map of Blue-gray Gnatcatcher (average density, males/ha) Show detections

Land cover associations

Density (males/ha) across Canada and in Bird Conservation Regions within Canada (see Methods)
    Density by lancover for Blue-gray Gnatcatcher

    Population size

    Population size (million males) is based on summing up predictive maps by regions (intervals in parentheses reflect the 5th and 95th percentile of the bootstrap distribution; see Methods)
    RegionAbundance
    (M males)    		Density
    (males/ha)    		Area
    (M km2)

    Data accessibility

    • Download average density raster layers in GeoTIFF format.
    • Download results in Excel (xlsx) format. Sheets contain abundance and density estimates and also the list of species, variables, variable importance and validation metrics.
    • Access the population size and density estimates via the JSON API.

    Citing these results

    Boreal Avian Modelling Project, 2020. BAM Generalized National Models Documentation, Version 4.0. Available at https://borealbirds.github.io/. DOI: 10.5281/zenodo.4018335. [Results for Blue-gray Gnatcatcher (Polioptila caerulea)]